Pakistan, April 21 -- Louis Tomlinson and Zayn Malik have sparked fresh speculation of a rift after fans noticed a subtle but telling change on social media.

Tomlinson recently unfollowed his former One Direction bandmate on Instagram, prompting a wave of reactions online. While Malik continues to follow Tomlinson, the one-sided move has fueled rumors that tensions may have resurfaced between the two singers.

The development comes amid unverified reports of an alleged altercation between the pair during filming for a proposed streaming project. According to claims circulating in tabloids, Zayn punched Louis during filming for a Netflix road trip-style series in the United States. However, neither Tomlinson nor Malik has publicly address...